Pharmaceutical Name (substance): synthetic thyroid hormone

Common Brand, Trade, Commercial Denominations: Armour Thyroid, Bio-Throid, Cytomel, Levothroid, Levoxyl, Levo-T, Naturethroid, Synthroid, Tapazole, Thyrogen, Thyrolar, Unithroid, Westhroid, Levothyroxine/L-thyroxine, Unithroid, Liothyronine (Cytomel/T3), Liotrix, Methimazole, Propylthiouracil/PTU, Natural thyroid, Thyrotropin alfa, Time-released T3, L-Thyroxin, Novothyrox, Levolet.

Manufacturers: SIIC, Abbott Labs, BIO-TECH Pharmacal, Forest Pharmaceuticals, Genzyme, Jerome Stevens, King Pharmaceuticals, Mova Pharmaceuticals, Western Research Laboratories, Mylan, Alara, Jones, GenPharm, Lloyd, Vintage.